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   characterization and synthesis of some new schiff bases and their potential applications  
   
نویسنده mohammed mayada talib ,al-sieadi wadhah naji ,al-jailawi oday h. r.
منبع journal of medicinal and pharmaceutical chemistry research - 2022 - دوره : 4 - شماره : 6 - صفحه:481 -494
چکیده    In this present work, [4,4`-(biphenyl-4,4`-diylbis(azan- 1-yl-1-ylidene))bis(methan-1-yl-1-ylidene)bis(2- methoxyphenl)(a1),4,4`-(biphenyl-4,4`-diylbis(azan-1- yl-1-ylidene))bis(methan-1-yl-1- ylidene)diphenol(a2),1,1`-(biphenyl-4,4`-diylbis(azan- 1-yl-1-ylidene))bis(methan-1-yl-1-ylidene) dinaphthalen-2-ol (a3)]c.s was prepared in 3.5% nacl. corrosion prevention at (293-323) k has been studied by using electrochemical measurements. it shows that the utilized inhibitors are of mixed type based on the polarization curves. the results indicated that the inhibition efficiency changes were used with a change according to the functional groups on the benzene ring and through the electrochemical technique. temperature increases with corrosion current (icorr) and potential (ecorr) and decreases with cs covered by schiff bases in the presence of inhibitors and temperatures decrease with efficiency (% pe) of cs in the absence and presence of inhibitors and using several techniques including infrared (ft-ir), scanning electron microscopy (sem) and atomic force microscopy (afm). kinetic and thermodynamic activation parameters (ea, a, δh*, s*, g*) were calculated for prepared vehicles. then, the biological activity of the prepared compound (a1-a3) showed its efficiency with the use of grampositive and gram-negative bacteria (staphylococcus aureus, staph.aure) and (escherichia coli, e.coli), as well.
کلیدواژه corrosion ,polarization curves ,inhibition ,carbon steel ,biological activity ,electrochemical
آدرس university of baghdad, college of science, department of chemistry, iraq, university of baghdad, college of science, department of chemistry, iraq, university of baghdad, college of science, department of chemistry, iraq
پست الکترونیکی oday.h@sc.uobaghdad.edu.iq
 
     
   
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